About the book: year / As a result of an accident when falling into an elevator shaft, an ordinary builder named Sergei finds himself in an exotic place unfamiliar to him, where humanoid creatures live. Sergei remains to live in the settlement of these creatures, considering them some kind of secret experiment. After some time, he becomes aware that he ended up not only in a different place, but also in a different time, namely in the year 4127, in which two types of descendants of humanity are at enmity - the Sochevans and the Tyronians. The newly-minted newcomer does not stand aside and is involved in the fight for the independence of Sochevan. But just how can our contemporary master the technologies of the forty-second century??